)MPORTANT3AFETY.OTICE
2EADANDSAVETHESEINSTRUCTIONS
d. Use an extinguisher ONLY if:
1. You know you have a Class ABC extinguisher, and you already know how
to operate it.
2. The fire is small and contained in the area where it started.
3. The fire department is being called.
4. You can fight the fire with your back to an exit
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO PERSONS,
OBSERVE THE FOLLOWING:
a. Installation work and electrical wiring must be done by qualified person (s) in
accordance with all applicable codes and standards. Including fire-rated construction.
b. Sufficient air is needed for power combustion and exhausting of gases through the
flue (chimney) of fuel burning equipment to prevent back drafting. Follow the heating
equipment manufacturer’s guideline and safety standards such as those published
by the National Fire Protection Association (NFPA) and the American Society for
Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) and the local code
authorities.
c. When cuttig or drilling into wall or ceiling, do not damage electrical wiring and other
hidden utilities.
d. Ducted fans must always vent to the outdoors.
WARNING
TO REDUCE THE RISK OF FIRE, USE ONLY METAL DUCTWORK.
CAUTION
To reduce risk of fire and to properly exhaust air outside - Do not vent exhaust air into
spaces within walls, ceilings, attics, crawl spaces or garages.
WARNING
TO REDUCE THE RISK OF SHOCK, THIS FAN MUST BE INSTALLED WITH AN
ISOLATING WALL CONTROL/SWITCH.
OPERATION
Always leave safety grills and filters in place. Without these components, operating
blowers could catch onto hair, fingers and loose clothing.
*NOTE: Please check www.zephyronline.com for revisions before doing any custom
work.
-/$%,!+7500 series
e. If this unit is to be installed over a tub or shower, it must be marked as appropriate for the
application and be connected to a GFCL (Ground Fault Interrupter protected branch circuit).
g. NEVER place a switch where it can be reached from a tub or shower.
h. Make sure the power is off before installing, wiring or maintenancing.
2EADALL)NSTRUCTIONSBEFORE)NSTALLINGANDOPERATINGTHISAPPLIANCE
-/$%,
)MPORTANT3AFETY.OTICE
5SE#AREAND)NSTALLATION'UIDE
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT USE THIS
FAN WITH ANY SOLID-STATE CONTROL DEVICE.
WARNING
TO REDUCE THE RISK OF FIRE ELECTRIC SHOCK, OR INJURY TO
PERSONS, OBSERVE THE FOLLOWING:
a. Use this unit only in the manner intended by the manufacturer, if you have questions,
contact the manufacturer.
b. Before servicing or cleaning unit, switch power off at service panel and lock panel
to prevent power from being switched on accidentally. When the service disconnecting
means cannot be locked, securely fasten a prominent warning device, such as a tag,
to the service panel.
CAUTION
For general ventilating use only. Do not use to exhaust hazardous or explosive materials
and vapors. Take care when using cleaning agents or detergents.
Suitable for use in household cooking area.
WARNING
TO REDUCE THE RISK OF RANGE TOP GREASE FIRE:
a. Never leave surface units unattended at high settings. Boilovers cause smoking
and greasy spillovers that may ignite. Heat oils slowly on low or medium settings.
b. Always turn hood ON when cooking at high heat or when flaming food
c. Clean ventilating fans frequently. Grease should not be allowed to accumulate
on fan or filter.
d. Use proper pan size. Always use cookware appropriate for the size of the surface
element.
e. Keep fan, filters and grease laden surfaces clean.
f. Use high setting on hood only when necessary.
g. Don’t leave hood unattended when cooking.
h. Always use cookware and utensils appropriate for the type of and amount of food
being prepared.
WARNING
TO REDUCE THE RISK OF INJURY TO PERSONS IN THE EVENT OF A RANGE TOP
FIRE, OBSERVE THE FOLLOWING:
a. SMOTHER FLAMES with a close-fitting lid, cookie sheet, or metal tray, then
turn off the burner. BE CAREFUL TO PREVENT BURNS. If the flames do not go out
immediately, EVACUATE AND CALL THE FIRE DEPARTMENT.
b. NEVER PICK UP A FLAMING PAN – You may be burned.
c. DO NOT USE WATER, including wet dishcloths or towels – a violent steam
explosion will result.
DEC05.0101 www.zephyronline.com
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v DRYWALLSCREWS
v DRYWALLSCREWS
v WASHERS
WIRECONNECTORS
INSTALLATION
MOUNT HEIGHTS
DUCTING
18"
36"
96"
Min 24"-Max 32"
12"
Minimum mount height between range top to
hood bottom should be no less than 24".
Maximum mount height should be no higher
than 32".
It is important to install the hood at the
proper mounting height. Hoods mounted too
low could result in heat damage and fire hazard; while hoods mounted too high will be
hard to reach and will loose its performance
and efficiency.
If available, also refer range manufacturer's
height clearance requirements and recommended hood mounting height above range.
A minimum of 8" round duct must be used to
maintain maximum air flow efficiency.
Always use rigid type metal ducts only.
Flexible ducts could restrict air flow by up to 50%.
Also use calculation (on right) to compute total
available duct run when using elbows, transitions
and caps.
ALWAYS, when possible, reduce the number or
transitions and turns. If long duct run is required,
increase duct size from 8" to 9” or 10". If a reducer is used, install a long reducer instead of a pancake reducer. Reduce duct size as far away from
opening as possible.
If turns or transitions are required:
Install as far away from opening and as far
apart, between 2, as possible.
Minimum Duct Size:
Round:
8" minimum
Duct Run Calculation:
Maximum run
8"
Deduct:
each 90 Elbow used
each 45 elbow used
each 8"
transition used
each 3/14 x 10" to 8"
each 3/14 x 10" to 8"
transition used
Side Wall Cap w/ damper
Roof Cap
100 FT
15 FT
9 FT
1 FT
5 FT
30 FT
30 FT
e.g.- 1 roof cap, 2x90 elbows, 1 x 45 elbow used:
=30' + 30' + 9' =69' used, 31' available for straight duct runs.
Models: AK7500, AK7536, AK7548 Page 1
INSTALLATION
DUCTING
NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling,attics or
garages. All exhaust must be ducted to the outside.
Use metal ductwork only.
Fasten all connections with sheet metal screws and tape all joints w/ certified Silver Tape or Duct Tape.
Some Ducting Options:
WARNING FIRE HAZARD
Models: AK7500, AK7536, AK7548 Page 2
Side wall cap
w/ gravity damper
Side wall cap
w/ gravity damper
Soffit or crawl space
Roof Pitch w/
Flashing & Cap
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